I'm having the same problem. I tried installing from both the rpm as well
as the setup.py method. Here is what went into /var/log/messages
Aug 13 08:21:21 localhost weewx[12706]: engine: Initializing weewx version
3.7.1
Aug 13 08:21:21 localhost weewx[12706]: engine: Using Python 2.6.6
(r266:84292, Aug 18 2016, 15:13:37) #012[GCC 4.4.7 20120313 (Red Hat
4.4.7-17)]
Aug 13 08:21:21 localhost weewx[12706]: engine: Platform
Linux-2.6.32-696.6.3.el6.x86_64-x86_64-with-centos-6.9-Final
Aug 13 08:21:21 localhost weewx[12706]: engine: Locale is 'en_US.UTF-8'
Aug 13 08:21:21 localhost weewx[12706]: engine: Using configuration file
/home/weewx/weewx.conf
Aug 13 08:21:21 localhost weewx[12706]: engine: Loading station type
Vantage (weewx.drivers.vantage)
Aug 13 08:21:21 localhost weewx[12706]: import of driver failed: zero
length field name in format (<type 'exceptions.ValueError'>)
Aug 13 08:21:21 localhost weewx[12706]: engine: Unable to load driver: zero
length field name in format
Aug 13 08:21:21 localhost weewx[12706]: **** Exiting...
If I use wee_device to try and look at the Davis station I get something
similar...
[root@localhost bin]# ./wee_device ../weewx.conf --info
Using configuration file ../weewx.conf
Using Vantage driver version 3.0.10 (weewx.drivers.vantage)
Traceback (most recent call last):
File "./wee_device", line 54, in <module>
main()
File "./wee_device", line 51, in main
device.configure(config_dict)
File "/home/weewx/bin/weewx/drivers/__init__.py", line 69, in configure
self.do_options(options, parser, config_dict, prompt)
File "/home/weewx/bin/weewx/drivers/vantage.py", line 1834, in do_options
station = Vantage(**config_dict[DRIVER_NAME])
File "/home/weewx/bin/weewx/drivers/vantage.py", line 476, in __init__
self.port.openPort()
File "/home/weewx/bin/weewx/drivers/vantage.py", line 283, in openPort
self.serial_port = serial.Serial(self.port, self.baudrate,
timeout=self.timeout)
File
"/usr/lib/python2.6/site-packages/pyserial-3.4-py2.6.egg/serial/serialutil.py",
line 240, in __init__
self.open()
File
"/usr/lib/python2.6/site-packages/pyserial-3.4-py2.6.egg/serial/serialposix.py",
line 272, in open
self._reconfigure_port(force_update=True)
File
"/usr/lib/python2.6/site-packages/pyserial-3.4-py2.6.egg/serial/serialposix.py",
line 345, in _reconfigure_port
ispeed = ospeed = getattr(termios, 'B{}'.format(self._baudrate))
ValueError: zero length field name in format
Hope that helps. I need to get this solved too as I would love to port
my weather stations over to weewx.
On Friday, March 17, 2017 at 7:14:14 PM UTC-4, Tom Keffer wrote:
>
> Not a lot to go on here.
>
> Nothing in weewx uses the function str.format(), so I'm not sure what is
> creating this exception.
>
> Weewx should run on Python v2.5, v2.6, or v2.7.
>
> Could you please try running weewxd directly from the command line
> <http://weewx.com/docs/usersguide.htm#Running_directly>? It should show
> you the stack trace.
>
> -tk
>
>
> On Fri, Mar 17, 2017 at 1:50 PM, gearoid <[email protected] <javascript:>
> > wrote:
>
>> engine: Loading station type Vantage
>> (weewx.drivers.vantage)
>>
>> Mar 17 19:53:57 weewx[1915]: import of driver failed: zero length field
>> name in format (<type 'exceptions.ValueError'>)
>>
>> Mar 17 19:53:57 weewx[1915]: engine: Unable to load driver: zero length
>> field name in format
>>
>> Mar 17 19:53:57 weewx[1915]: **** Exiting...
>>
>> Is there a 2.7 requirement ?
>>
>>
>> Also, To get this far I had to install the backport of python-importlib
>> from the EPEL, which resolved the following:
>>
>> import of driver failed: No module named importlib (<type
>> 'exceptions.ImportError'>)
>>
>>
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